intercalate

[in-tur-kuh-leyt]
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verb (used with object), in·ter·ca·lat·ed, in·ter·ca·lat·ing.
  1. to interpolate; interpose.
  2. to insert (an extra day, month, etc.) in the calendar.

Origin of intercalate

1605–15; < Latin intercalātus past participle of intercalāre to insert a day or month into the calendar, equivalent to inter- inter- + calā- (stem of calāre to proclaim) + -tus past participle suffix
Related formsin·ter·ca·la·tive, adjectiveun·in·ter·ca·lat·ed, adjective

Synonyms for intercalate

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


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British Dictionary definitions for intercalate

intercalate

verb (tr)
  1. to insert (one or more days) into the calendar
  2. to interpolate or insert
Derived Formsintercalation, nounintercalative, adjective

Word Origin for intercalate

C17: from Latin intercalāre to insert, proclaim that a day has been inserted, from inter- + calāre to proclaim
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for intercalate
v.

"to insert a day into the calendar," 1610s, from Latin intercalatus, past participle of intercalare "to proclaim the insertion of an intercalary day," from inter- "between" (see inter-) + calare (see calendar). Related: Intercalated; intercalating.

Online Etymology Dictionary, © 2010 Douglas Harper